On the high-temperature plasticity of ceria-doped zirconia nanostructured polycrystals

被引：4

作者：

de Bernardi-Martin, S. ^{[1
]}

Zapata-Solvas, E. ^{[1
]}

Gomez-Garcia, D. ^{[1
]}

Dominguez-Rodriguez, A. ^{[1
]}

Guzman-Vazquez, F. J. ^{[2
]}

Gomez-Herrero, J. ^{[2
]}

机构：

[1] Univ Seville, Dept Fis Mat Condensada, Apartado 1065, Seville 41080, Spain

[2] Univ Autonoma Madrid, Dept Fis Mat Condensada, Madrid 28049, Spain

来源：

MECHANICAL PROPERTIES OF SOLIDS XI | 2010年 / 423卷

关键词：

Ceria-zirconia; nanomaterials; mechanical behaviour; YTTRIA TETRAGONAL ZIRCONIA; DEFORMATION; FLOW;

D O I：

10.4028/www.scientific.net/KEM.423.61

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Ceria-zirconia ceramic alloys with the following molar composition: 0.12CeO(2)-0.88ZrO(2) have been sintered by high-temperature annealing. Monolithic specimens haven been crept in compression at high temperatures. Creep experiments have been rationalized to an empirical constitutive equation which is consistent with a classical Ashby-Verrall creep regime. This result has been assessed through microstructural characterization of as-received and post-mortem specimens. A pure Ashby-Verrall creep is contrary to the conventional mechanism controlling creep in other zirconia alloys. A discussion on the explanation for such mechanism is outlined.

引用

页码：61 / +

页数：2

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